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The perfect insect appears in June and July. 
The caterpillar is in a dull orange brown case. 
The date of the appearance of the caterpillar is in 
April and May. 
It feeds on the field chick weed {Ger ostium arvense). 
COLEOPHORA ARTEMISIELLA. 
Plate CXX. Figure 20. 
Localities for this species are near Darlington, Mid- 
dlesborough, and Stockton-on-Tees. 
The perfect insect appears in June, and at the end 
of August till late in September. 
The date of the appearance of the caterpillar is in 
August. 
It feeds on the sea wormwood {Artemisia maritima). 
The chrysalis is placed in a long grey case. 
ELACHISTIDiE. 
BEDELLIA SOMNULENTELLA. 
Plate CXXI. Figure 1. 
Localities for this species are Greenhithe, Bideford, 
Manchester, Lewisham, Worthing. 
The perfect insect appears in August and October. 
